Looks like we commented in parallel.
Yes, backport will be helpful.
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https://bugs.launchpad.net/bugs/1996071
Title:
[UBUNTU 20.04] boot: Add secure boot trailer
Status in Ubuntu on IBM z Systems:
New
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Focal:
New
Status in linux source package in Jammy:
New
Status in linux source package in Kinetic:
New
Bug description:
Description: boot: Add secure boot trailer
Symptom: Secure boot of Linux will no longer be possible with an
upcoming
IBM Z firmware update.
Problem: New IBM Z firmware requires signed bootable images to contain a
trailing data block with a specific format.
Solution: Add the trailing data block to the Linux kernel image.
Reproduction: Apply latest firmware, perform IPL with Secure Boot
enabled.
Fix: available upstream with
Upstream-ID: aa127a069ef312aca02b730d5137e1778d0c3ba7
Preventive: yes
Date: 2022-10-27
Author: Peter Oberparleiter <[email protected]>
Component: kernel
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1996071/+subscriptions
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